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Adafruit EMC2101 I2C PC Fan Controller and Temperature Sensor - STEMMA QT / Qwiic

Marsoni M251S
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Adafruit EMC2101 I2C PC Fan Controller and Temperature Sensor - STEMMA QT / QwiicCooling fans are essential for keeping electronics cool, but controlling fan speed can be complex. The Adafruit EMC2101 from Microchip SMSC simplifies this with a fan controller and temperature sensor that supports 3 or 4 pin PC fans. This breakout board features programmable PWM output, tachometer input for monitoring fan speed, and both internal and external temperature sensing with 16C accuracy. Key capabilities include: Control fan speed with PWM
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4.2 ★★★★★
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Carmen J Santora
Louisville, US
★★★★★ 4
Nice touch
Allows for some organization, and looks nice. Pretty sturdy, and I have not had any issues with it, I was a little smaller than I hoped.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 28, 2020
S
Verified Purchase
Siddhartha
Lexington, US
★★★★★ 5
Nice quality
Seems very good quality. Will purchase again.
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Reviewed in the United States on October 18, 2025
J
Verified Purchase
J. Goff
Charlottesville, US
★★★★★ 5
Roomy
Looks even better in person. More room then I expected
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Reviewed in the United States on October 31, 2025
S
Verified Purchase
Sb1
Grantham, US
★★★★★ 5
Nice
Great
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Reviewed in the United States on May 28, 2026
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Gigi40ne
Grantham, US
★★★★★ 5
Tray
This is the perfect size! I received my order sooner than expected when the first one wasn't delivered.
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Reviewed in the United States on December 17, 2025

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